Connection between typewriting and like machines and a baseboard



Feb. 10, 1931. P. KAPPLER 7 1,792,428

CONNECTION BETWEEN TYPEWRITING AND LIKE MACHINES AND A BASEBOARD Filed Nov. 4, 1927 1 270??? for J Patented Feb. 10,1931- NITE STATES PATENT OFFICE PAUL xKrr'LER, or ransom, GERMANY CONNECTION BETWEEN TYPIiW'BI'lING AND LIKE MACHINES AND A BASEIBOARD Application filed November 4, 1927, Serial No. 231,010, and in Germany July 11, 1927.

This invention relates to the connection of typewriters, particularly of the portable type, to a base board. The invention is also applicable to calculating and like machines. For the purpose of transporting such machinesand for protecting them from dust, it

is usual to enclose the machine in a case consisting of a cover or lidand a base board. The machine is usually secured to the base board, generally by means of screws. Such machines foroffice use are removed from the base board for use and placed upon a felt pad or the like to reducenoise and obtain smooth actuation, but with smaller machines intend- 5 ed for use either in business premises or during travel, this inconvenient and troublesome work is abandoned and the machine is left secured to the base board. With small lightlybuilt machines, apart from the great annoymice due to the noise of typing, there is also the disadvantage that, if the base board warps, the machine warps with it and this results in bad typing and the mechanism sometimes jambs or seizes. A further drawback is that it is diflicult to clean the base board and machine. These disadvantages are avoided, according to the present invention, by the PIOVlsion of a connection between the machine and 39 base board which can be readily undone,

which firmly holds the machine when in operative use, but which can yield both horizontally and vertically and also serves to damp the sound. For this purpose, the base board is provided with pins or projections over which are pressed rubber or other resilient sockets or feet on thc machine which are formed with corresponding holes and which A are also capable of lateral movement on the machine frame. Ifthe base board works, the only result is thatthe pins adjust themselves in the rubber feet, whilst differences in the distance between the pins and the distance between the fastenings holding the rubber feet to the machine frame are taken up by lateral'movement of the feet.

The accompanying drawing illustrates em bodiments of the invention by way ofexto ample.-

Figs. 1 and 2 are sectional views showing two constructions.

Fig. 3 is a perspective view of the machine frame.

Fig. 4 is a sectional view of one of the feet.

The machine frame 1 is provided with holes 2 into which rubber feet 3 are so forced that a groove 4 in the foot 3 receives two or more of the edge walls of the hole 2 in frame 1. The sizes of the holes 2 and the outer diameter of the rubber feet 3 may be such that the feet can be pressedinto place.

The groove 4: is of such depth that it allows the rubber foot a small amount of horizontal sliding movement or play in the hole in the machine frame, as .shown in Figs. 1 and 2. Holes 5 in the rubber feet 3 are pushed over pins 6 on the base board 7. The distances between the pins and elasticity of the feet must be such, that the feet are held firmly by their contractile energy and against any tendency to spread under pressure and elongate the holes while being capable of being readily removed from the pins by hand. The pins 6 may be fastened to the base board in any convenient manner. As illustrated they are screwed into the base board feet 8 by screw-threaded studs.

The pins may also have an upper enlargement as in Fig. 2 which fits. tightly through the hole in the rubber foot whilst the shank of the pin is smaller'than the hole in the rubber foot. In such case, greater play is pos- 'sible-in every direction without casual disconnection of the foot from the pin.

It is also apparent that the pins might be fitted to the machine frame and the rubber feet to the base board. The pins or projections may be round, flat or any other desired shape.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed I declare that what I claim is,:

1. Means for connecting the frame of a typewriting, calculating or like machine to a baseboard comprising, in combination with a machine frame, and a-baseboard, a set of fastening members consisting of pins on one of said parts and eoactingsupporting members consisting of keeper sockets of resilient material on the other of said parts, each socket having a pin receiving opening of smaller diameter than a portion of the pin for an elastic interlock between the socket and pin, whereby the pins and sockets are held connected by contractile action of the sockets and are adapted to be released under a predetermined disengaging force.

2. A connection between typewriting and like machines and a base board as claimed in claim 1 in which the projection has a, smaller shank than the aperture'in the socket and adapted to fit therein and a head of greater diameter than the aperture and adapted to overlie the socket when connected therewith, substantially as described.

3. In fastening means of the character described, the combination, with a machine frame, and a baseboard, of fastening projections on one of said parts, and resilient sockets on the other of said parts for engagement with the projections to detachably couple the parts and form cushioning supports for the machine frame, said sockets having an elastic gripping engagement with the proj ections but being otherwise free for slidable engagement with and disengagement from said projections under a predetermined separating force, the said elastic gripping engagement between the projections and sockets being suflicient to maintain a connection between them and to prevent the baseboard from dropping ofi when the machine and the baseboard are jointly lifted from the desk, table or like support.

4. In means for connecting a t pewriter or like machine with a baseboard upright projections on the baseboard, and elastic sockets on the base of the frame having openings of a normally smaller diameter than the projections to tightly receive the projections and place the walls of the socket under com pression for a contractile'gripping engage ment between the sockets and pro ections when fitted together, the projections and sockets being otherwise free for slidable en gagement and disengagement under a pre- 7 determined engaging or disengaging force.)

5. In means for connecting a typewriter or like machine with a baseboard, projections on the baseboard, and elastic sockets on the frame having openings of a diameter to ti htly receive the projections fora contracti e gripping engagement between the sockets, said sockets'being slidably'connected with the frame to permit of a limited lateral shifting movement of the frame on the baseboard.

PAUL KKPPLER. 

